Commit 0bfaffbf authored by Florian Fainelli's avatar Florian Fainelli Committed by Konrad Rzeszutek Wilk
Browse files

swiotlb: Group identical cleanup in swiotlb_cleanup() 



Avoid repeating the zeroing of global swiotlb variables in two locations
and introduce swiotlb_cleanup() to do that.

Signed-off-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: default avatarKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
parent 4e7372e0

kernel/dma/swiotlb.c

+10 −8
Original line number Diff line number Diff line
@@ -309,6 +309,14 @@ swiotlb_late_init_with_default_size(size_t default_size) 
	return rc;

}



static void swiotlb_cleanup(void)

{

	io_tlb_end = 0;

	io_tlb_start = 0;

	io_tlb_nslabs = 0;

	max_segment = 0;

}



int

swiotlb_late_init_with_tbl(char *tlb, unsigned long nslabs)

{
@@ -359,10 +367,7 @@ swiotlb_late_init_with_tbl(char *tlb, unsigned long nslabs) 
	                                                 sizeof(int)));

	io_tlb_list = NULL;

cleanup3:

	io_tlb_end = 0;

	io_tlb_start = 0;

	io_tlb_nslabs = 0;

	max_segment = 0;

	swiotlb_cleanup();

	return -ENOMEM;

}
@@ -386,10 +391,7 @@ void __init swiotlb_exit(void) 
		memblock_free_late(io_tlb_start,

				   PAGE_ALIGN(io_tlb_nslabs << IO_TLB_SHIFT));

	}

	io_tlb_start = 0;

	io_tlb_end = 0;

	io_tlb_nslabs = 0;

	max_segment = 0;

	swiotlb_cleanup();

}



/*